管理学 数据字典 释 data dictionary 数据字典 对数据流程图中数据项、数据结构、数据流、处理逻辑、数据存储和外部实体进行定义和描述的工具。是系统设计阶段数据库设计的重要依据、信息系统分析阶段的重要工具。 理学 数据库运行管理 释 data dictionary 数据字典 有关数据库系统中各种数据的描述信息和控制信息的集合，而不是数据本身。又称描述数据库或元数据库。
数据库 数据库管理系统及其实现技术 释文 data dictionary, DD 数据字典
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